Handheld ultrasound (HHUS) has become a useful adjunct to auscultation and plays an important role in medical education and physical diagnosis, Dr. Barclay noted in Medscape Medical News on April 1, 2014, noting that it is uncertain whether HHUS will become the stethoscope of the future. According to Professor Scott D. of Harvard Medical School, “A new generation of physicians needs to see handheld ultrasound as an extension of their senses. Handheld ultrasound technology needs to be accepted by medical schools and integrated throughout the medical curriculum. The stethoscope was invented in 1816 by the French physician Renék. For the next two centuries, nearly all physicians used stethoscopes. With the exception of the electronic stethoscope, which amplifies the signal and filters it, there have been few advances in stethoscope style and technology. Ultrasound provides sufficient anatomical and functional information without ionizing radiation. In the last five years, ultrasound has largely replaced the stethoscope in cardiovascular, obstetrical and gynecological, and gastrointestinal diseases. In cardiovascular medicine, echocardiography is now the most common and cost-effective test. With HHUS physicians can make a quick diagnosis at the bedside. HHUS is also used in obstetrics, intensive care ultrasound, and catheterization. In rural Africa, HHUS is used by midwives to diagnose fetal dewlap abnormalities and improve maternal and child survival rates for cesarean deliveries. Rapid diagnosis of acute pulmonary embolism in elderly non-ST-segment elevation myocardial infarction by HHUS, with immediate chest CT and prompt treatment of the patient. Avoid unnecessary risk and expense by choosing the right treatment with HHUS. The cost and size of previous ultrasound equipment has limited the popularity of ultrasound instruments. With faster and smaller microprocessors, the full functionality of ultrasound can be fully implemented on a laptop computer, even with the instrument in your pocket. dr. Moore estimates that a reasonable price for HHUS currently used in emergency and ICUs is $8,000 to $10,000. Dr. Solomon and others believe that the HHUS can surpass the stethoscope. First-year students trained in the use of HHUS diagnose cardiac abnormalities more correctly than specialists who often use stethoscopes. The University of California, Harvard University, and others have recently added ultrasound training to their undergraduate curricula. HHUS is simple to perform, but difficult to master, so ultrasound training needs to be introduced early in medical education. Freshman students have limited ability to improve the ability to focus the heart on the acoustic beam, while juniors are already well versed in sweeping techniques, image acquisition and analysis. Expert guidance is important to develop scanning skills. Dr. Mulvagh et al. advocate that the HHUS can be used as an extension of the stethoscope, not a replacement. the HHUS is intended to aid clinical diagnosis through ultrasonography by diagnosing or ruling out suspicious pathological diagnoses by what is or is not seen on the ultrasound image. the HHUS needs improvement in two areas. Technically, smaller size and more ergonomic design such as the ability to hear lung breath sounds and bowel sounds. On the educational side, physicians must see the HHUS as an extension of the senses and continue to incorporate ultrasound into the medical education process. Barriers to the widespread use of HHUS include reservations by experienced sonographers when instructing instrument use and image interpretation, false negatives and false positive results, and the potential to reduce the use of traditional physical examinations by medical students. scholars such as Dr. Mulvagh have suggested research into how ultrasound can be integrated into medical education programs. As HHUS technology advances, it will soon be interesting to see if patients expect proficiency in the use of HHUS from doctors who expect it.